To my knowledge, this heavy polar icebreaker design has been developed by the Marine Design & Research Institute of China (MARIC) without direct help from western icebreaking experts. However, there was a Chinese-language article which stated that the design has been partially derived from the Aker Arctic-designed polar research vessel Xue Long 2 commissioned earlier this year.
I did some quick back-of-the-envelope calculations based on the limited technical details available for this design. While it’s theoretically possible to design a non-nuclear-powered 26,000-ton triple-screw* Polar Class 2 icebreaker capable of continuously breaking 3-metre ice** without excessive installed power and/or going to the extreme with the icebreaking hull geometry, you’d have to pull off every trick in the holy book of icebreaker design to make that work and still end up with nearly zero design margins. With no prior experience from icebreaker development, the Chinese designers are accepting quite a big risk for not achieving their design targets…
* while I could only see two azimuthing propulsion units in the published photographs, there has to be a third shaft-driven propeller in the middle, similar to the USCG PSC
** design icebreaking performance stated in the original Chinese-language article